package com.lyj.ui.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.lyj.pojo.User;

/**
 * Servlet implementation class LogoutServlet
 */
@WebServlet({"/LogoutServlet","/logout"})
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession();
		if(session.getAttribute(User.SESSION_NAME)!=null){
			session.invalidate();
		}
		Cookie[] cookies = request.getCookies();
		if(cookies != null) {
			for(Cookie cookie:cookies) {
				if(cookie.getName().equals(User.SESSION_NAME)) {
					cookie.setValue("0");
	                response.addCookie(cookie);
				}
			}
		}
		response.sendRedirect(request.getContextPath()+"/login");		
		
	}


	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}
